Any of various aquatic, carnivorous mammals of the genus Lutra and allied genera, related to the minks and weasels and having webbed feet and dense, dark brown fur.(noun)
The fur of this mammal.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "otter" in a sentence
"The terminally cute sea otter is a marine weasel into rough sex."
"Crawford said: "Whether you will see an otter is totally down to luck, but there is a better chance now than there has been for 50 years.""
"Paul Raven, head of conservation and ecology at the Environment Agency, said: The otter is at the top of the food chain, and as such is an important indicator of the health of English rivers."